视频框架Vitamio学习

publicstatic Bitmap createVideoThumbnail (String filePath, int kind)

extractThumbnail(Bitmap source, int width, int height, int options)
extractThumbnail(Bitmap source, int width, int height)

Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(path1, Thumbnails.MINI_KIND);  
bitmap = ThumbnailUtils.extractThumbnail(bitmap, 210, 210);

MediaMetadataRetriever mmr = new MediaMetadataRetriever();  
mmr.setDataSource("/sdcard/33.mp4");  
Bitmap bitmap = mmr.getFrameAtTime();  
image.setImageBitmap(bitmap);  
System.out.println(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DATE)+"");  
System.out.println(mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_MIMETYPE)+"");  
mmr.release();

publicstatic Bitmap createVideoThumbnail(String filePath) {  
    // MediaMetadataRetriever is available on API Level 8  
    // but is hidden until API Level 10  
    Class<?> clazz = null;  
    Object instance = null;  
    try {  
        clazz = Class.forName("android.media.MediaMetadataRetriever");  
        instance = clazz.newInstance();  
  
        Method method = clazz.getMethod("setDataSource", String.class);  
        method.invoke(instance, filePath);  
  
        // The method name changes between API Level 9 and 10.  if (Build.VERSION.SDK_INT <= 9) {  
            return (Bitmap) clazz.getMethod("captureFrame").invoke(instance);  
        } else {  
            byte[] data = (byte[]) clazz.getMethod("getEmbeddedPicture").invoke(instance);  
            if (data != null) {  
                Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);  
                if (bitmap != null) return bitmap;  
            }  
            return (Bitmap) clazz.getMethod("getFrameAtTime").invoke(instance);  
        }  
    } catch (IllegalArgumentException ex) {  
        // Assume this is a corrupt video file  
    } catch (RuntimeException ex) {  
        // Assume this is a corrupt video file.  
    } catch (InstantiationException e) {  
        Log.e(TAG, "createVideoThumbnail", e);  
    } catch (InvocationTargetException e) {  
        Log.e(TAG, "createVideoThumbnail", e);  
    } catch (ClassNotFoundException e) {  
        Log.e(TAG, "createVideoThumbnail", e);  
    } catch (NoSuchMethodException e) {  
        Log.e(TAG, "createVideoThumbnail", e);  
    } catch (IllegalAccessException e) {  
        Log.e(TAG, "createVideoThumbnail", e);  
    } finally {  
        try {  
            if (instance != null) {  
                clazz.getMethod("release").invoke(instance);  
            }  
        } catch (Exception ignored) {  
        }  
    }  
    returnnull;  
}